He gets tired, and he'll feel it tomorrow trust me. He just doesn't ever show how tired he is on the field. I think its something he concentrates on doing. But I remember one time he ran like 35 times against New England for just over 100 yards on the way to a win for us, and he didn't look tired during the game, but then on his website a few days later he complained that it was the most tiring experience he'd just about ever been through. He said compared to that game, other games he was walking away from them fresh as ever.
Dolphins controlled the clock for over 40 minutes in this game. WOW